Animation object position..origin point, proper pivot
This might be a long way of doing it, but you can type the exact position of the xyz locations and rotations for each object.
As these are in a straight line, technically two of the locations should be identical for each object, and the rotation should be the same for all of them.
So find one that's in the correct position, then copy paste the location and rotation to all the others. You'd only then need to alter the x or y (not sure from the screenshot) of each to space them out.
That's how I'd do it but maybe there's a better more efficient way.